while True:
    try:
        num1 = int(input("请输入您的第一个值："))
        yunsuan = input("请输入您的计算操作符+、-、*、/：")
        num2 = int(input("请输入您的第二个值："))
        if yunsuan == "+":
            print("{}{}{}={}".format(num1, yunsuan, num2, num1 + num2))
        elif yunsuan == "-":
            print("{}{}{}={}".format(num1, yunsuan, num2, num1 - num2))
        elif yunsuan == "*":
            print("{}{}{}={}".format(num1, yunsuan, num2, num1 * num2))
        elif yunsuan == "/":
            print("{}{}{}={}".format(num1, yunsuan, num2h, num1 / num2))
        else:
            print("运算符输入不合规")
    except ValueError:
        print("输入的值不是整数，请重新输入")
